Abstract:
The effects of excess Sodium (Na) on Cobalt (Co), Cadmium (Cd) and Barium (Ba) were
studied using the inductively coupled plasma-optical emission spectrometry (ICP-OES). The
emission signals of the analytes with the inteferent were evaluated as E’/E and plotted against
the concentration. Readings were taken between 0-10mg/l for Cobalt and Cadmium whilst for
Barium; readings were taken from 0-30mg/l. The experimental graphs revealed that there is
an effect of the intereferent on the signal emission. Comparisons were made using the
theoretically calculated graphs from which a derivative and applicable theory to explain the
experimental graphs was simulated. The theories explained variables in which ΔE = 0, ΔE =
IP (int) - IP (anal) and ΔE = kt -IP (anal) in which ΔE is the change in energy. These
were used to simulate the relationship between the experimental and the theoretical graphs.
However a close relationship was realised between the graphs.
